A turntable, with bearings, how to turn it back, and the pointer always refers to a point
There are reasons:1. turntable level is not adjusted.The weight of the 2. turntable is different.The above two points are ready, no problem.
The turntable has not done the dynamic balance test! The static balance test is done first, then the g value is tested, then the dynamic balance test is done. In the following points heavier, you can gradually increase in the opposite side, so that these two points can stay at the horizontal line, so as to go on, you can achieve static balance, dynamic balance is more complex, there is no instrument can not do.
There are reasons:1. turntable level is not adjusted.The weight of the 2. turntable is different.The above two points are ready, no problem. Ask these two points how to do ah?Answer 1.. Mark the point with the marker pen first. Then rub a little test again, so repeated several times, until it reaches a point can no longer stop.2. level, that is, to find a leveling instrument to adjust. (on a construction site).The above method is aimed at the absence of professional instruments, and the rotating speed of the turntable is low in the case of a "soil" approach, but it is very effective.In the case of higher speed, it is necessary to have professional instruments to perform static and dynamic balancing testsThe turntable has not done the dynamic balance test! The static balance test is done first, then the g value is tested, then the dynamic balance test is done. In the following points heavier, you can gradually increase in the opposite side, so that these two points can stay at the horizontal line, so as to go on, you can achieve static balance, dynamic balance is more complex, there is no instrument can not do. Gentamenfenba
